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(No Model.)

T. SHEARD.

THREAD GUIDE FOR KNITTING MACHINES.

No. 263,065.- Patented Aug. 22-, 1882.-

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- UNITED STATES PATENT OFFICE.

TITUS SHEARD, OF LITTLE FALLS, NEW YORK.

THREAD-GUIDE FOR KNITTING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 263,065 dated August 22, 1882.

Application filed May 20,1882. (N model.)

' thread-guides, incident to the friction of the thread or yarn being drawn through said eyes.

The invention consists essentially in providing the thread-guide at or near its eyes with a dovetail groove, and inserting in said groove a glass or other anti-friction plate, as hereinafter more fully explained, and set forth in'the claim.

In the annexed drawings, Figure 1 is a side view of a thread-guide, such as is usually employed on knitting-machines, for conveying the thread to the so-called burr or loop-wheel, which passes said thread into the beard of the knitting-needles. Fig. 2 is a top view of the same, and Fig. 3 an end view.

Similar letters of reference indicate corresponding parts.

A represents the thread-guide in the form of a metal bar, usually provided with a vertical shank, s, by means of which it issecured to'the side of the standard immediately back of the burr or loop-wheel, which passes the thread into the beard of the needles, the arran gement of said devices being so well understood by those skilled in the art to which this invention relates that I deem it unnecessary to illustrate the same in the drawings. Said thread-guide is usually provided with two eyes, a b, respectively at the two extremities thereof. The thread to be knitted passes through the rear eye, a, which is in a right-angled bend or offset, 0, of the rear end of the thread-guide.

From the eye a the thread is extended through I the forward eye, b, and thence to the usual loop-wheel or burr, which carries said thread into the heard of the knittingneedle, the thread being drawn along by'its engagement with the needles carried on the rotating needle-cylinder. The draft of the thread through the two eyes a 1) produces such friction and abrasion on the parts in contact therewith as to rapidly cut creases or channels in the edge of the said eyes, and disfigure the same to such an extent as to impair the efficiency of the thread-guide. To obviate this defect 1 secure to the thread-guide, at or near the eyes thereof and in the path of the thread, an antifriction facing in the form of a plate, d, of glass, porcelain, enamel, or other analogous vitrified or equally hard material. Said plateIsecurein position by making its edges beveling and insertingitinto an undercut or dovetailed groove, 0, in the surface of -the thread-guide, as best seen in Fig. 2 of the drawings. lfdesired,said plate may be further secured in the groove 0 by means of suitable cement. The thread moves over the said anti-friction plate, and is thereby prevented from coming in contact with the metal edge of the eye of the'thread-gnide, thus effectually preventing the wear of the same.

1 do not claim broadly the application of an anti-friction shield to a thread-guide for the purpose of protecting the same against the friction of the passing thread, as I am aware the same is not new; but

' What I do claim is The combination of the thread-guide A, provided at its eyes a b with the dovetail groove 0, and the anti-friction plate d, adapted to be inserted and secured in said groove, substantially as described.

V In testimony whereof Ihave hereunto signed my name and affixed my seal, in the presence of two attesting Witnesses, at Syracuse, in the county of Onondaga, in the State of New York, this 29th day of April, 1882.

'llTUS SHEARD. [L. s]

Witnesses:

G. H. DUELL,

WM, 0. RAYMOND. 

